Thirteen, the last piglet of a litter of 13, loves to play and help out around the farm. But he soon realizes that his mother can only feed 12 of her piglets at the same time, which, unfortunately, leaves no room for him. Suddenly, life seems very unfair! Gripped by his literal hunger, Thirteen discovers that a different kind of hunger will drive him to find the solution to take his place among his family.
